New Hampshire Dams

664 dams tracked by the National Inventory of Dams

Total Dams

664

High Hazard

162

24.4%

Poor / Unsatisfactory

152

Average Age

100 yrs

Hazard Classification

High162 (24.4%)
Significant185 (27.9%)
Low300 (45.2%)

Condition Assessment

Satisfactory267 (40.2%)
Fair169 (25.5%)
Poor / Unsatisfactory152 (22.9%)
Not Rated76 (11.4%)

Federal

22

State

170

Local

195

Private

261

All Dams in New Hampshire

Showing 126150 of 162

Dam NameHeight (ft)YearHazardCondition
Souhegan River Site 19 Dam

Hillsborough County

361962HighFair
Souhegan River Site 25b Dam

Hillsborough County

741967HighFair
Souhegan River Site 26 Dam

Hillsborough County

791965HighFair
Souhegan River Site 28 Dam

Hillsborough County

291964HighSatisfactory
Souhegan River Site 33 Dam

Hillsborough County

211971HighFair
Souhegan River Site 35 Dam

Hillsborough County

301965HighFair
Souhegan Site 14 Dam

Hillsborough County

281836HighFair
Souhegan Site 8 Dam

Hillsborough County

251977HighSatisfactory
Spectacle Pond Dam

Grafton County

71915HighSatisfactory
Squam Lake

Grafton County

171856HighSatisfactory
Stratford Bog Pond Dam

Coos County

161934HighPoor
Suncook Lake Dam

Belknap County

161882HighPoor
Sunrise Lake Dam

Strafford County

191877HighSatisfactory
Sunset Lake Dam

Belknap County

171860HighPoor
Supply Pond Dam

Hillsborough County

281854HighFair
Surry Mountain Dam

Cheshire County

831941HighNot Available
Swains Lake Dam

Strafford County

171890HighSatisfactory
Taylor River Pond Dam

Rockingham County

191949HighSatisfactory
Three Mile Reservoir Dam

Cheshire County

201986HighSatisfactory
Tower Hill Pond Dam

Rockingham County

351938HighSatisfactory
Turkey Pond Dam

Merrimack County

151958HighSatisfactory
Uncanoonuc Lake Dam

Hillsborough County

101936HighSatisfactory
Uncanoonuc Lake Dike

Hillsborough County

151954HighFair
Upper Kimball Pond Dam

Carroll County

101800HighPoor
Upper Reservoir Dam

Grafton County

301924HighFair
PreviousPage 6 of 7Next

Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.